Feature: 1. Wide Compatibility: Coffee grinder hopper silicone bellows are c ompatible with for Baratza Encore, for Baratza Encore ESP, for Baratza Virtuosa+, ensuring a seamless fit. 2. Effective Sealing: The top lid forms a good sealing that does not air leakage when pressed down. Frequent use of the grinder can cause residuary coffee to accumulate on burrs. 3. Improved Taste: The silicone bellow creates an airspace between the coffee beans and the top, blowing out the ground particles after grinding and preventing coffee flavor from being affected by previous coffee. 4. Reduce Waste: Control the amount of coffee beans used to minimize waste and ensure every precious coffee bean is effectively utilized. By controlling the amount of coffee beans used, this hopper minimizes waste effectively. 5. Food Grade Material: Made of food grade, dust proof silicone material, this silicone bellows is easy to use. Place on the hopper and cover it for convenient operation. Recommend to cycle the grinder operation 2‑3 times. Specification: Item Type: Coffee Grinder Silicone Bellow Material: Silicone Size: Approx. 13.5x5.5cm / 5.3x2.2in Gross Weight: 155g/5.5oz Color: Black. Package List: 1 x Coffee Grinder Silicone Bellow Note: All data are measured manually, and there are certain errors in the measurement results.